Releasing voltha-onos:4.1.5

(Version 4.1.4 was already released and the -dev was wrongly set)

Change-Id: I7b718001a5b02d41ee36d1637077b7adb048bcc5
diff --git a/dependencies.xml b/dependencies.xml
index d637dd5..037a0b8 100644
--- a/dependencies.xml
+++ b/dependencies.xml
@@ -24,11 +24,11 @@
     <version>fake</version>
 
     <properties>
-        <olt.version>4.2.0-SNAPSHOT</olt.version>
+        <olt.version>4.2.0</olt.version>
         <sadis.version>5.1.0</sadis.version>
         <aaa.version>2.1.0</aaa.version>
-        <dhcpl2relay.version>2.2.0-SNAPSHOT</dhcpl2relay.version>
-        <kafka.version>2.4.0-SNAPSHOT</kafka.version>
+        <dhcpl2relay.version>2.2.0</dhcpl2relay.version>
+        <kafka.version>2.4.0</kafka.version>
         <igmpproxy.version>2.1.2</igmpproxy.version>
         <mcast.version>2.1.0</mcast.version>
         <maclearner.version>1.0.0</maclearner.version>